On Thu, May 27, 2010 at 10:56:37PM +0100, Alan Cox wrote: > On Thu, 27 May 2010 22:36:35 +0100 > Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote: > > No it doesn't. The kernel continues executing anything that was on the > > Would you like to come and watch my laptop resume ? With printk's if you > want. You appear at this point to be arguing that bumble bees can't > fly, while watching one. The kernel performs no explicit notification to userspace. With legacy graphics setups you'll get a VT switch, but X is entirely unaware that that's due to suspend and that's going away in any case. On a typical setup it's not even the kernel that does the VT switch to and from X - that's handled by a script that happens to be on the runqueue. So yeah, things kind of work as you suggest right now - but only by accident, not design. What you're describing requires a new interface to inform interested bits of userspace whenever you transition from your deep idle state into a less deep one. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
